Compact Machines version: compactmachines3-1.12.2-3.0.18-b278
Forge version: 14.23.5.2815
I am not using Optifine: true
Link to Crashlog: Not Applicable
Screenshot (if possible): Attachment

Description of the problem including expected versus actual behavior:
Machine preview shows the above example. Added mod to Project Ozone 3, No resource pack in use. Walls should be a different texture and are transparent to allow viewing. Basically all blocks from the mod in preview are incorrectly textured.
Steps to reproduce:
View a preview of a machine.

Hey, jupp, I've seen that in my own playthroughs as well, but can not replicate in my dev environment.
I think it is related to block mappings, which get confused if you add/remove mods.

I'm sure there are people who could instantly tell me whats wrong, but at the moment I'm clueless. Going to look into it again over the coming days.

This occurs due to NotEnoughIDs mod, it's doing sketchy shit with block mappings resulting in this kind of stuff. There's not much you can do, unless you want to dig around NEIDs internals.